Two-Parallel Strip Particle for Artificial Magnetic Material and Its Application to High-Impedance Layer

Hiroshi KUBO  Atsushi MATSUMOTO  Atsushi SANADA  

IEICE TRANSACTIONS on Electronics   Vol.E90-C   No.9   pp.1749-1755
Publication Date: 2007/09/01
Online ISSN: 1745-1353
DOI: 10.1093/ietele/e90-c.9.1749
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
Category: Passive Devices/Circuits
artificial magnetic particle,  magnetic material,  magnetic wall,  

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A particle for artificial magnetic materials in microwave frequency is proposed. It has simple structure composed of two parallel metal strips and is suitable to make a thin material extending in the transverse plane. In order to grasp the characteristic the effective permeability is formulated in the form of a transmission line. The characteristics of effective permeability are discussed based on the transmission line model for miniaturization and increase of the permeability. After discussing the reflection from materials with negative permeability or negative permittivity, a high impedance material is constituted. Total reflection with zero phase from the material composed of modified magnetic particles is measured in a waveguide.